/// <summary>
/// 删除Videos表信息时 添加删除索引请求至队列
/// </summary>
/// <param name="bid"></param>
public void Del(int vid)
{
VideoViewMode bvm = new VideoViewMode();
bvm.Id = vid;
bvm.IT = IndexType.Delete;
VideoQueue.Enqueue(bvm);
}
/// <summary>
/// 修改Videos表信息时 添加修改索引(实质上是先删除原有索引 再新增修改后索引)请求至队列
/// </summary>
/// <param name="Videos"></param>
public void Mod(Video Videos)
{
VideoViewMode bvm = new VideoViewMode();
bvm.Id = Videos.Id;
bvm.Title = Videos.Title;
bvm.IT = IndexType.Modify;
bvm.About = Videos.About;
bvm.Tags = Videos.Tags;
bvm.CategoryId = Videos.CategoryId;
bvm.BigPicturePath = Videos.BigPicturePath;
bvm.SmallPicturePath = Videos.SmallPicturePath;
bvm.CreateTime = Videos.CreateTime;
bvm.IsOfficial = Videos.IsOfficial;
bvm.PlayCount = Videos.PlayCount;
bvm.CommentCount = Videos.CommentCount;
bvm.VideoState = Videos.VideoState;
bvm.CreateManageId = Videos.CreateManageId;
VideoQueue.Enqueue(bvm);
}
/// <summary>
/// 更新索引库操作
/// </summary>
private void CRUDIndex()
{
FSDirectory fsDirectory = FSDirectory.Open(new DirectoryInfo(indexPath), new NativeFSLockFactory());
bool isExist = IndexReader.IndexExists(fsDirectory);
if (isExist)
{
if (IndexWriter.IsLocked(fsDirectory))
{
IndexWriter.Unlock(fsDirectory);
}
}
IndexWriter writer = new IndexWriter(fsDirectory, new PanGuAnalyzer(), !isExist,
IndexWriter.MaxFieldLength.UNLIMITED);
// writer.SetMergeFactor(30);
try
{
#region 更新索引
while (VideoQueue.Count > 0)
{
Document document = new Document();
VideoViewMode Video = VideoQueue.Dequeue();
if (Video.IT == IndexType.Insert)
{
document.Add(new Field("id", Video.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("categoryId", Video.CategoryId.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("title", string.IsNullOrEmpty(Video.Title) ? "" : Video.Title,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("about", string.IsNullOrEmpty(Video.About) ? "" : Video.About,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("tags", string.IsNullOrEmpty(Video.Tags) ? "" : Video.Tags,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("videoState", Video.VideoState.ToString(), Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("playCount", Video.PlayCount.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("commentCount", Video.CommentCount.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("bigPicturePath", Video.BigPicturePath, Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("smallPicturePath", Video.SmallPicturePath, Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createTime", Video.CreateTime.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createTimeNum", Video.CreateTime.ToString("yyyyMMddHHmmss"), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createManageId", Video.CreateManageId.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("isOfficial", Video.IsOfficial.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
if (Video.IsOfficial == true)
{
document.Add(new Field("isofficialtrue", LanguageUtil.Translate("api_Business_Search_IndexManager_CRUDIndex_isofficialtrue_Insert"), Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
}
document.GetField("title").SetBoost(2F);
writer.AddDocument(document);
}
else if (Video.IT == IndexType.Delete)
{
writer.DeleteDocuments(new Term("id", Video.Id.ToString()));
}
else if (Video.IT == IndexType.Modify)
{
//先删除 再新增
writer.DeleteDocuments(new Term("id", Video.Id.ToString()));
document.Add(new Field("id", Video.Id.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED));
document.Add(new Field("categoryId", Video.CategoryId.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("title", string.IsNullOrEmpty(Video.Title) ? "" : Video.Title,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("about", string.IsNullOrEmpty(Video.About) ? "" : Video.About,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("tags", string.IsNullOrEmpty(Video.Tags) ? "" : Video.Tags,
Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("videoState", Video.VideoState.ToString(), Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
document.Add(new Field("playCount", Video.PlayCount.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("commentCount", Video.CommentCount.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("bigPicturePath", Video.BigPicturePath, Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("smallPicturePath", Video.SmallPicturePath, Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createTimeNum", Video.CreateTime.ToString("yyyyMMddHHmmss"), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createTime", Video.CreateTime.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("createManageId", Video.CreateManageId.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
document.Add(new Field("isOfficial", Video.IsOfficial.ToString(), Field.Store.YES,
Field.Index.NOT_ANALYZED));
if (Video.IsOfficial == true)
{
document.Add(new Field("isofficialtrue", LanguageUtil.Translate("api_Business_Search_IndexManager_CRUDIndex_isofficialtrue_Modify"), Field.Store.YES, Field.Index.ANALYZED,
Field.TermVector.WITH_POSITIONS_OFFSETS));
}
//设置索引字段权重
document.GetField("title").SetBoost(2F);
writer.AddDocument(document);
}
}
#endregion
}
catch (Exception ex)
{
#if !DEBUG
LogBuilder.Log4Net.Error(LanguageUtil.Translate("api_Business_Search_IndexManager_CRUDIndex_catch"), ex.MostInnerException());
#else
Console.WriteLine("更新索引操作CRUD失败:" + ex.MostInnerException().Message);
#endif
}
finally
{
writer.Optimize(); //添加完后合并
writer.Close();
fsDirectory.Close();
}
}